Grain-drill



(ModeL) W. H. NAUM'AN.

Grain Drill.

No. 233,109. Patented Oct. 12,1880.

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ILFETERS. PHOTO-LITHOGRAPHER. WASHINGTON. D\C.

PATENT OFFICE.

WILLIAM NAUMAN, OF DAYTON, OHIO.

GRAIN- DRILL.

SPECIFIC'ATION forming part of Letters Patent No. 233,109, dated October 12, 1880.

Application filed March 13, 1880.

Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Grain-Drills; and 1 do hereby declare the following to he a full,

clear, and exact description of the same.

My invention relates to an improvement in grain-drills; and my improvements consist, first, in a new force-feed mechanism; second- 1 y, in an improved reversible scattering-board; and, thirdly, in a novel 'conveyer-tube hanger.

The novelty of my force-feed mechanism, which belongs to that class in which the feedwheels on a common shaft are shifted laterally to regulate the feed, consists in providing the feeding cylinder or wheel with ribs or blades, which, by'sliding said cylinder, are made deeper or shallower without shortening their length, so as to expose more or less of -their forcing-surface to the grain, and thereby regulate the amount fed.

The novelty of my remaining improvements consists in their constructions and combinations, all as will be herewith specifically set forth. 4

In the accompanying drawings, Figure 1 is a sectional view, in side elevation, of so much of a grain-drill as exhibits the relative positions of my improvements. Fig. 2 is an enlarged perspective viewof one end of my reversible scattering-board. Fig. 3 is a side elevation of my improved feed-wheel cylinder. Figs. 4 and 5 are side and end elevations of my skeleton-cylinder and washers. Figs. 6 and 7 are plauand side elevation of the cup or wheel casings. Fig. 8 is a perspective view of the cup-saddle. Fig. 9 is a near elevation of the cup and contained feed devices. Figs. 10 and 11 are plan and side elevation, in section, of my improved conveyer-hanger. Fig. 12 is a side elevation of a modification in the construction of the feed-wheel.

The frame-work and general organization of the machine may be of the usual or any suitable construction, A representing the seed box or hopper; B, the grass-seed hopper; b, the side beams, and ,D E the cross-beams; F, the drag-bars; G, the hoes, and H the conveyertubes.

The cups in which the feed-wheels rotate,

(ModeL) Figs. 6, 7, 8, and 9, consist of the lower or receiving portion, I, with a roundiug'bottorn having laterally-projecting pins a, upon which the conveyer-tubes are hung. These cups, which are secured upon the bottom of the hopper in the usual way, are open upon each side, and have the discharge-orifice b for the grain upon the rear or ascending sides of the feedwheels. In each cup is placed a skeletonwheel, Figs. at and 5, which isjust as wide as the cup, and which is composed of two annular washers, c d, united by equidistant ribs 6. These washers are of equal external diameter, and snugly fit into the side aperture of the cup I. The bore of the washer c is somewhat smaller than that of the washer d, and the ribs 0, which are set radially, are flush on their under surfaces with the bore of the washer 0, while they project within the bore of the washer d, as seen in Fig. 5. To hold this skeleton in place I employ the saddle K, Figs. 7 and 8, which, being provided with shoulders f and y, when let into the top of the cup I, is self-locked therein against lateral displacement, aud also, by reason of the shoulders g, which bear against the inner edges of each of the washers, prevents the skeletonwheel from slippinglaterally, though it is free to revolve.

The feed-wheel shaft L, receiving its rotation in the usual or any suitable way, runs centrally through the bores of the washers and has keyed upon it the wheel-cylinders M, Figs. 3 and 9. These cylinders are twice as long as the width of the cups, and have one half of their length smooth to slide snugly through the bore of the Washer c and against the under sides of the ribs 0. The other half of the cylinder has raised ribs it upon it, which enter the larger bore of the washer d and fit snugly between the ribs 0, as seen in Fig. 9.

The tops of the ribs 0 project above the tops of the ribs 71., so that the former can always feed even when the ends of the ribs h are in contact with the washer 0. By this means I produce a feed-wheel which will always feed the grain through to a very limited and the slightest extent when the ribbed portion of the cylinder is entirely within the cup. As this ribbed portion is drawn out the ribs 0 are gradually exposed, thus enlarging the feedcells and gradually increasing the discharge of the grain. Any suitable means ntay beemployed in connection with a gage-plate for sliding the feed-shaft to sow any required quantity of grain.

As a. modification ot' the above construction the feed-wheel may be constructed as in Fig. 12, where it is ribbed its entire length, but where the depressions betweett the ribs for half its length are deeper than betweett the ribs for the otherhalt'. With such a wheel the Washers would be unconnected by ribs, as in Fig. 4, but each would have apertures to form its bore corresponding to the shape. of each respective haltof the feed-wheel. liy this lateral construction the same eti'ect in feeding would result as in the former construction that is, the wheel would feed at all times through to theleast possible extent when the enlarged portion was wholly within the cup. The object ot'this improvement is to prevent crushing ot'the grain, which is such a sourceot' dit ficulty aml a serious objection to most forcefeeds.

\V ith the above mode of operation there are no stationary side portions of the cup or followers against which the grain can be caught aml crushed.

My improved reversible scattering-board for depositing the grass-seed either in front or behind the drilling or cultivating hoes consists of a board, II, of suitable width and thickness, having projecting metal straps i secured upon each end, as seen in Fig. L, to form metalbound slots in the ends of the board.

Upon the inner sides of the side beams, C, directly under the grass-seed box. are fastened metal plates 0, Fig. I, carrying at the upper central portion a pin. to tit into the slot It ofthe scattering-board. Upon the lower outer corners of the plates 0 are lugs I, having stopshoulders at, and above these are guide-pins 'n, as seen in Fig. 1.

To apply the seattering-board it isonly necessary to slip its slots over the pins], which serve as pivots, and, by sliding the board down obliquely until the lower open ends of the slots pass over the lugs I, it becomes set, as seen in Fig. I. In this position the grass seed is deposited in the rear of the hoes.

To shift the board it is onl v necessary to slide it up and swing it upon the pinsj, when it can be lowered and locked, as before, in the position shown by the dotted lines, Fig. I, in which position the seed is thrown front of the hoes. This forms a simple attachment,

which enables the scattering-lmard to be reversed without removing or detaching it from the frame.

It can be readily understood that instead of slotting the ends of the scattering-boards slots may he tnade in the side plates, 0, and the pivot maybe situated upon the ends of the s 'attcring-board.

My conveyer-hanger, Figs. 10 and 11, to which the tubes II are attached, consists ot'a metal tube, a, with a flaring rear upper portion extending laterally to form hooks b, adapted to slip over the pins a of the cups, and thereby suspend the tubes.

In many machines the jumping off or detachment of these tubes during the operation of the drill. caused by going over uneven ground, is a fruitful source of trouble. To remedy this and form adetachablelock is the object of this improvement; and to this end I pivot; a gravitating latch, c, in the front portion of the tube a, as shown particularly in Fig. 11. This latch, ot' the shape indicated, when depressed at its lower portion is thrown into the position indicated by the dotted lines. In this portion the hooks b can be slipped over the pins u to secure the conveyor-tubes to the cups. Now, upon letting go of the latch it falls, by gravity, hack to the first position, and bears against the rounded bottom of the cup, thus forming a toggle-joint, which prevents the tubes front being removed unless the latch is depressed.

Having thus fully described my invention, I claim 1. In the force-feed mechanism of graindrills, the combination, with each cup, of a laterally-adjustable feed-wheel having two sets of blades or ribs forming feed-cells of varying depths and widths, for the purpose specified.

2. In the force-feed mechanism of graindrills, the combination, with annular washers, ot' laterally-adjustable feed-wheels having for each cttp two sets of blades or ribs forming teed-cells of varying depths aml widths, for the purpose specified.

it. In the force-feed mechanism of graindrills, the feed-wheel consisting ot'a skeletonwheel composed of washers and connectingribs and a contained laterally-sliding ribbed cylinder, as and for the purpose specified.

4. The reversible sliding and swinging scattering-board having slots in its ends, in combination with pivot-pins and adjusting-stops, as and for the purpose specified.

.3. 'Iheeombination,with aconveyer-hanger, of a gravitating latch for preventing the accidental disengagement ot' the tubes, as set forth.

In testimony whereof I have hereunto set my hand.

\VM. II. NAUMAN.

\Yitnesses:

l'A'rmcK II. GUNeKEL, (n.ts. M. IcoK. 

